The Tanner T-Weight is a reinforced canvas sandbag that slides seamlessly over top or rests on the front edge of any batting tee to offer the highest degree of additional stablity for batting tee work. No longer are hitters required to carry a gym barbell to training. The T-Weight maximizes surface area contact by conforming to the contour of the base. This is a product manufactured specifically for batting tees, and it is both a clean and practical option to hitters who want that added stability. The T-Weight is just under five pounds.